Attachment for wipers or squeegees



A. WENGER.

ATTACHMENT FOR WIPERS 0R SQUEEGEES.

APPLICATION FILED JULY 22, 1921. 1,41 3,441 Patented Apr. 18, 1922.

- umrsn sTArss Parent orrics.

Am n QE' QNNE, ew JERSEY.

To (6Z5 whom it mag conqem:

Be it known that I, AARON lVnNenR, a" citizen of the United States, anda resident of Bayonne, in the county of Hudson and Stateof New Jersey,have invented a new and Improved Attachment for Wipers or Squeegees, ofwhich the following is a full, clear, and exact description.

This invention relates to an attachment for wiper strips or Squeegees,the same being particularly designed for use in connection with wiper,members of the kind employed in connection with floor oiling machines asset forth in my co-pending application, Serial No. 431,004, filedDecember 15, 1920.

The invention contemplates an attachment especially designed for use inconnectionwith felt strips used as wiper members for the purpose ofgiving to the same a resilient backing to insure the proper contact ofthe same throughout their length with the surface to be wiped.

The invention is also useful in connection with other wiper members orsqueegees inorder to give to the same the proper elasticity orresiliency.

As a further object, the invention contemplates a device of thecharacter described which is extremely simple in construction,inexpensive to manufacture, and which 18 thoroughly reliable and highlyefficient in its purpose.

With these and other objectsin view,,the

invention resides in the novel construction, combinatlon and arrangementof parts set Figure 1 is a perspective view illustrating a wiper memberequippedwith a backing attachment constructed in accordance with theinvention.

Fig. 2 1s a fragmentary longitudinal sec tional view through a flooroiling machine illustrating the wiper members thereof equipped withbacking devices constructed in accordance with the invention.

Referring to the drawings by characters of reference, 10 designates thewiper member ATTACI'IJVIENT FOR-WIPERS OR SQUEEGEES.

1921. Serial No. 485,751.

consisting of a" felt strip clamped at, its upper end between a metallicinverted shaped channel member llwhich is i p'r e'fer ably bentrearwardly; at its opposite ends at ya right angle to the major portionof its.

length to provide apertured attaching lugs 12 which embrace thelongitudinal frame bars 13 of the machine and receive these-o curingbolts 14 to dispose the strips trans versely of the machine and the pathof travel of the same. In order to augment and impart to the felt wipermember 10 the desired resiliency or elasticity, the backingmember isemployed which consists ofva strip 15;

preferably of metal provided with spacedupstanding spring arms '16 whichare se Specification of Letters Patent. Pat p 1922. v 1

Application filed July 22, Y I 7 cured at their free ends as at 17 tothe members ll whereby to dispose the strip 15 in parallel relation andpreferably at the rear of the wiper member 10. In the embodiment asillustrated, the strip 15 .is preferably constructed from a sheet ofmaterial bent upon itself in substantially U-formV and be-- between theleaves of which the ends-of the spring arms are received and-retained bythe fastening elements or rivets 18.

In use and operation the spring arm 16 U will permit of the rearward-flezii'ng of the f p t the transverse strip15 the frictional engagefeltwiperrmember and will effect through ment or impingement of the loweredge of .sure its proper co-operation therewith.

It 1s,- ofcourse, to be understood that it vthe wiper member against thesurface to in-' desired a backing member may be secured to the wipermember on either side of thesame where the wiper member is designed-tobe i used in connection with a machine or for a purpose where the samewill be movedin vvHaving thus described my invention, what I claim is: V

1. As a new artlcle of manufacture, a

wiper orsqueegee construction embodying bracing one edge thereof, and 5abacking member compr sing, a strip of material and spaced resilient armsconnecting sa d strip to the channel member; a o

va wiper member, a channel member emparallel to one side of the wipermember to engage and coact therewith for effecting the impingement orthe active edge of the Wiper member with the surface over which it isoperated, comprising a strip ofmaterial bent in a U-form and spacedresilient arms secured respectively at its opposite ends to thesupporting member and between the U- shaped strip. 7

3. The combination with a Wiper member comprising a felt strip having areinforce-

